Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Network HTTP access with a low-privilege authenticated account and no user interaction yields high confidentiality and integrity impact, with no availability effect.
Primary rating from Vendor (oracle).
CVSS VectorVendor: oracle
Lifecycle Timeline
2DescriptionCVE.org
Vulnerability in the Oracle E-Business Tax product of Oracle E-Business Suite (component: Internal Operations). Supported versions that are affected are 12.2.3-12.2.15. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle E-Business Tax. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle E-Business Tax accessible data as well as unauthorized access to critical data or complete access to all Oracle E-Business Tax accessible data. CVSS 3.1 Base Score 8.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N).
AnalysisAI
Remote data compromise in Oracle E-Business Tax (Oracle E-Business Suite, Internal Operations component) allows a low-privileged authenticated attacker with HTTP network access to read, create, delete, or modify all E-Business Tax accessible data. Affecting supported versions 12.2.3 through 12.2.15, the flaw carries a CVSS 3.1 base score of 8.1 with high confidentiality and integrity impact but no availability impact. No public exploit has been identified at time of analysis, and it is not listed in CISA KEV; it was reported by Oracle's own security team and addressed in the July 2026 Critical Patch Update.
Technical ContextAI
Oracle E-Business Tax is the centralized tax engine within Oracle E-Business Suite (EBS), a large enterprise ERP platform that manages tax setup, calculation, and reporting across financials, procurement, and order management modules. The affected 'Internal Operations' component is exposed over HTTP through the EBS application tier (typically Oracle Application Server / WebLogic fronting the Forms and self-service web applications). The vendor tag 'Authentication Bypass' combined with the PR:L vector suggests an authorization or access-control weakness where an already-authenticated low-privilege user can reach data and operations beyond their intended scope. No CWE was assigned in the source data, but the pattern (a logged-in user gaining unauthorized read/write to all module-accessible data) is consistent with a broken access control / improper authorization root cause rather than an unauthenticated pre-auth bypass.
RemediationAI
Apply the Oracle July 2026 Critical Patch Update (CPU), which contains the fix for this issue, as documented at https://www.oracle.com/security-alerts/cpujul2026.html; treat this as patch available per vendor advisory, as the input provides the CPU reference but no discrete component patch version number to cite. Because Oracle EBS patches are cumulative and delivered as CPU bundles, prioritize scheduling the July 2026 CPU across all 12.2.3-12.2.15 environments. Where immediate patching is not feasible, apply compensating controls: restrict network reachability of the EBS application tier and the E-Business Tax / Internal Operations endpoints to trusted internal networks or VPN only (trade-off: may block legitimate remote/self-service users), tighten EBS responsibility and role assignments to enforce least privilege for low-tier accounts (trade-off: requires access-review effort and may disrupt users relying on over-broad roles), and increase monitoring/auditing of E-Business Tax data changes to detect unauthorized create/delete/modify activity. Do not rely on these controls as a permanent substitute for the CPU.
More in E Business Tax
View allSensitive data compromise in Oracle E-Business Tax (component: Internal Operations), part of Oracle E-Business Suite rel
Vulnerability in the Oracle E-Business Tax product of Oracle E-Business Suite (component: User Interface). Rated high se
Local privilege-driven takeover in Oracle E-Business Tax (a component of Oracle E-Business Suite 12.2.3 through 12.2.15)
Oracle E-Business Tax versions 12.2.3 through 12.2.15 allows a low-privileged local attacker to compromise data integrit
Same weakness CWE-284 – Improper Access Control
View allSame technique Authentication Bypass
View allShare
External POC / Exploit Code
Leaving vuln.today
EUVD-2026-47219
GHSA-gf57-h8xx-7g55